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Nat Plants

Title:		Allelochemicals targeted to balance competing selections in African agroecosystems
Author(s):		Wu Y; Guo T; Mu Q; Wang J; Li X; Wu Y; Tian B; Wang ML; Bai G; Perumal R; Trick HN; Bean SR; Dweikat IM; Tuinstra MR; Morris G; Tesso TT; Yu J; Li X;
Address:		"Department of Agronomy, Kansas State University, Manhattan, KS, USA. National Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China. Department of Agronomy, Iowa State University, Ames, IA, USA. Department of Plant Pathology, Kansas State University, Manhattan, KS, USA. USDA-ARS, Griffin, GA, USA. USDA-ARS, Hard Winter Wheat Genetics Research Unit, Manhattan, KS, USA. Agricultural Research Center, Kansas State University, Hays, KS, USA. USDA-ARS, Grain Quality and Structure Research Unit, Manhattan, KS, USA. Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, USA. Department of Agronomy, Purdue University, West Lafayette, IN, USA. Department of Agronomy, Iowa State University, Ames, IA, USA. jmyu@iastate.edu. Department of Agronomy, Iowa State University, Ames, IA, USA. lixr@iastate.edu"
Journal Title:		Nat Plants
Year:		2019
Volume:		20191202
Issue:		12
Page Number:		1229 - 1236
DOI:		10.1038/s41477-019-0563-0
ISSN/ISBN:		2055-0278 (Electronic) 2055-0278 (Linking)
Abstract:		"Among major cereals domesticated as staple food, only sorghum has a high proportion of cultivars with condensed tannins in grain, which can trigger bitter taste perception in animals by binding to type 2 taste receptors (TAS2Rs). Here, we report the completion of uncovering of a pair of duplicate recessive genes (Tannin1 and Tannin2) underlying tannin presence. Three loss-of-function alleles from each gene were identified in non-tannin sorghum desired as palatable food. Condensed tannins effectively prevented sparrows from consuming sorghum grain. Parallel geographic distributions between tannin sorghum and Quelea quelea supported the role of tannins in fighting against this major herbivore threat. Association between geographic distributions of human TAS2R variants and tannin sorghum across Africa suggested that different causes had probably driven this bidirectional selection according to varied local herbivore threats and human taste sensitivity. Our investigation uncovered coevolution among humans, plants and environments linked by allelochemicals"
Keywords:		"Africa Alkadienes Animals Feeding Behavior Humans Pheromones/analysis/*metabolism Plant Proteins/genetics/metabolism Receptors, G-Protein-Coupled/genetics/metabolism Selection, Genetic Sorghum/chemistry/genetics/*metabolism/parasitology Sparrows/physiolog;"
Notes:		"MedlineWu, Yuye Guo, Tingting Mu, Qi Wang, Jinyu Li, Xin Wu, Yun Tian, Bin Wang, Ming Li Bai, Guihua Perumal, Ramasamy Trick, Harold N Bean, Scott R Dweikat, Ismail M Tuinstra, Mitchell R Morris, Geoffrey Tesso, Tesfaye T Yu, Jianming Li, Xianran eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2019/12/04 Nat Plants. 2019 Dec; 5(12):1229-1236. doi: 10.1038/s41477-019-0563-0. Epub 2019 Dec 2"